| 直接写出得数. 0÷( - )= | 1- ÷ = | 1÷0.01+0.01= | 19× - = |
26×( + )= | 0.125×80×2= | ÷ = | 30-29.02= |
| 9+99+999+3= | 0.01÷0.2= |
解:0÷( - )=0, | 1- ÷ = , | 1÷0.01+0.01=100.01, | 19× - =2, |
26×( + )=5, | 0.125×80×2=20, | ÷ =6, | 30-29.02=0.98, |
| 9+99+999+3=1110, | 0.01÷0.2=0.05. |
,100.01,2,5,20,6,0.98,1110,0.05.分析:0÷(
-
)根据0除以任何不为0的数都得0计算;1-
÷
先算除法,再算减法;1÷0.01+0.01先算除法,再算加法;19×
-
,26×(
+
)运用乘法分配律简算;0.125×80×2按照从左到右的顺序计算;9+99+999+3把3分解成1+1+1,再运用加法结合律简算;其它题目根据运算法则直接求解.点评:本题考查了基本的运算,计算时要注意使用运算定律进行简算.
÷
=